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Finding the Fourth Proportional to 167,811.90, 252,009.45 and 89,079.90

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Solution

The fourth proportional to 167,811.90, 252,009.45 and 89,079.90 is: 133,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,811.90 : 252,009.45 = 89,079.90 : x
  2. Step 2: Convert to fraction form
    167,811.90/252,009.45 = 89,079.90/x
  3. Step 3: Cross multiply
    167,811.90x = 252,009.45 × 89,079.90
  4. Step 4: Simplify right side
    167,811.90x = 22,448,976,605.06
  5. Step 5: Solve for x
    x = 22,448,976,605.06/167,811.90
  6. Step 6: Final answer
    x = 133,774.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.